i965: srgb texture fixes

i965 can either do SRGBA8_REV format or SARGB8 format, but not SRGBA8.
Could add SRGBA8_REV support to mesa, but simply use SARGB8 for now.
While here, also add true srgb luminance / luminance_alpha support -
unfortunately the published docs fail to mention which asics support
this, tested on g43 so assume this works on any g4x.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 66ce928955..2f1f4c55f9 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -140,8 +140,14 @@ static GLuint translate_tex_format( GLuint mesa_format, GLenum internal_format,
    case MESA_FORMAT_RGBA_DXT5:
        return BRW_SURFACEFORMAT_BC3_UNORM;
 
-   case MESA_FORMAT_SRGBA8:
-      return BRW_SURFACEFORMAT_R8G8B8A8_UNORM_SRGB;
+   case MESA_FORMAT_SARGB8:
+      return BRW_SURFACEFORMAT_B8G8R8A8_UNORM_SRGB;
+
+   case MESA_FORMAT_SLA8:
+      return BRW_SURFACEFORMAT_L8A8_UNORM_SRGB;
+
+   case MESA_FORMAT_SL8:
+      return BRW_SURFACEFORMAT_L8_UNORM_SRGB;
 
    case MESA_FORMAT_SRGB_DXT1:
       return BRW_SURFACEFORMAT_BC1_UNORM_SRGB;